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Question

Match List-I with List-II :

List-I List-II
Elements Properties
(a) Li (i) Poor water solubility of I−
(b) Na (ii) Most abundant element in cell fluid
(c) K (iii) Bicarbonate salt used in fire extinguisher
(d) Cs (iv) Carbonate salt decomoses easily on heating

Choose the correct answer from the options given below :

A
(a) - (i), (b) - (iii), (c) - (ii), (d) - (iv)
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B
(a) - (i), (b) - (ii), (c) - (iii), (d) - (iv)
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C
(a) - (iv), (b) - (iii), (c) - (ii), (d) - (i)
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D
(a) - (iv), (b) - (ii), (c) - (iii), (d) - (i)
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Solution

The correct option is C (a) - (iv), (b) - (iii), (c) - (ii), (d) - (i)
Among alkali and their componds Li2CO3 is thermally least stable and decomposes easily on heating.

NaHCO3 is used as fire extinguisher.

K is most abundant element in cell fluid,

CsI is a covalent compond and has poor water solubility.

correct answer is (a) - (iv), (b) - (iii), (c) - (ii), (d) - (i)

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